Product DetailsSmartwool NTS Light 200 Zip Running Top Keep the chill out and the tempo up, in this Smartwool running top. Ready to perform, this versatile long sleeve uses the natural benefits of Merino wool to provide UPF, thermoregulation and moisture management. Wear as a baselayer, mid layer or outer layer for complete comfort on bitter days.Designed for protection against the cold, this running top uses Form Fit technology to follow the contours of the body and lock in warmth. The Rib Knit construction and raglan sleeves make for a supple and stretchy wear, improving mobility and letting you power on up those inclines; because your clothing choice should never inhibit your natural movement. Flatlock seams feature for an irritation-free fit, because we know how that chafing can get you down. The front zipper allows for easy on-and-off, and can also be used to control airflow between you and the garment; zip down to relieve uncomfortable heat buildup and zip up to retain all-important body heat. Merino's natural antibacterial and moisture management properties ensure you stay damp-free while you exercise, and your gear gets that fresher-for-longer feel.FeaturesForm Fit - Follows the contours of the body.Rib Knit - Ensures freedom of movement.10" Center Front Zipper - With semi-locking slider.Raglan Sleeves - Eliminate top shoulder seams.Flatlock Seam Construction - Designed to eliminate chafing.Material - 100% Wool.Manufacturer product code - SMAB16116001